With the laser cladding technology, two different types of alloy powders are chosen to repair the inner cylinder rod surface. The microstructures, microhardness, corrosion resistance and wear resistance of the cladding layers with two different types of powders are compared and analyzed. The suggestions are given in terms of the applicative working environments of the inner cylinder piston rods repaired with these two different cladding materials. The study results show that these two types of cladding layer materials can both effectively improve the abrasive resistance, impact resistance and corrosion resistance performances of the inner cylinder piston rod surfaces.